Using the gas pedal analogy, the proto-oncogene would be an accelerator since they promote cell division and
deregulate apoptosis, while tumor suppressor would
be the brakes since they constrain the progress of the cell
cycle and induce cell apoptosis. An
oncogene is, therefore, when the accelerator
is stuck in down position and the brakes are not working. 
 
        
             
        
        
        
The layer of the sun can only be seen during a solar eclipse is corona
        
             
        
        
        
From lowest to highest hierarchy it would be: planet, star, solar system, galaxy.
        
                    
             
        
        
        
Answer: what is the major environmental factor limiting the number of autotrophs at great. Which abiotic factor has the least effect on the ability of aerobic organisms to live and, all living things that directly or indirectly affect the environment are known as. Which statement about the release of chemicals by willow trees is correct?
Explanation: